William arthur glenn



W. A. GLENN.

AUTO ATTACHMENT.

APPLICATION mu) FEB-24, 1919.

Patented Dec. 16, 1919.

1 N VEN TOR.

M TTORNEY.

til

UNI ED sTATEs PATENT OFFICE.

WILLIAM ARTHNR GLENN, OF WASHINGTON, DISTRICT OF COLUMBIAv ASSIGNOR F ONE-THIRD T0 CLARENCE RYE, OF WASHINGTON. DISTRIQT OF COLUMBIA.

, AUTO ATTACHMENT.

. Specification of Letters Patent.

Patented Dec. 1c, 1si9,

Application filed February 24. 1919. Serial No. 278.675.

.1 '0 all whom it may concern:

Be it known that I, WILLIAM ARTHUR Gerxx, a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and useful Improvement-s in Auto Attachments, of which the following is a specification.

This invention relates to'improveinentsin-means for'coiinecting a driving member to'a driven member and the principal object of the invention is to provide means to cushion the shock of sudden transmissions, of

damage to the mechanism. 4 v I The n vent on is more particularly adapt ed for use on automobiles thonglnof course,

motion or arrcsting of motion from one part to the other so as to reduce wear and prevent "do not wish to be limited to this applies-Ii tion of the invention. I I

The invent on also consists in; certain Qotli'er feati.ircs of. construction and' in the j combination and arrangement of the severalparts, to he hereinafter fully described, 'illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference' will be. had to the. accompanying drawings wherein like characteis denote like or corresponding parts throughontthe several views, and in which:-'

Figure 1 is a sectional view of the invention;

Fig. 2 is an end view with the shaft in section a: (1 one of the cover plates removed;

Fig. 3 is a perspective view of one of the lug-carrying members;

Fig. 4 is a lace view'of the other member;

Fig. 5 is a .l'ace view of the cover plate.

In these views 1 indicates the driving shaft. and 2 the driven shaft. .The driving shaft has a c lindrical member 3 keyed thereon and on one face of this member is provided an annular groove 4 of semicircular formation in cross section. The member is also provided with a fiat bottom groove 5 which is of smaller diameter than the groove 4 and the two grooves are separated by an annular rib (S. Cirenlar lugs 7 are carried by said member 3 and said lugs are located in the groove 4. The lugs pro1cct from said groove, as shown'in Fig. 1. Said lugs are spaced apart. so as to divide the groove into sections. A head or cylindrical member 8 is secured to the shaft. 2. and said head has th prbiss in'g Pa 0 L;

' I desire it to be understood thatI may i and springs.

secured to its periphery'a number of'.cyli ndrical lugs 9 which lie'in the ro ove 4. These lugs are so arranged that we 1 lug lies between a pair of the lugs 7 on the other member 3. A coiled spring 10 is'loea-ted be; tween'each of the lugs 7 and Sa din brder- 5 to provide a proper seat for the'endsj-of the springs said lugs are ofj'slightlytapered shape, as shown. A:- ,-cqver{.1plate' ll has its 1 outer flange'sholted'toftheoiiter flange of the member 3 and saidfcover plate p rovided with a .boss 12 for engaging the uhiilah ass 13 of the members. Said cove plate is proand said'plate'fis also providedannular part 15 ivl ch lies oppo'si eroove 5 The cylind and ballbearingslfi grooves '5 and 15 nd'bear ag'ainst'th faces of the mcmber 8. I

It will thus be seen that vhenlthe driving shafttbegiiis to rotate, tliefi noveinent. lugs 7--. on%'th v member 3 wil l---comp'r"ess 'fli springs'and' this compression of .thespring will actagainst the lugs 9.'"and1tliiis the rotary movement will eco "iiniciitedio the} shaft 2. .The sprin s .willf of to absorball I shock due to the suddeiistopping or starting of the driving shaft or snddei 'stoppmg of the driven shaft. It is ,thoii'ght' fro o egoing 0- scriptioirtliat the adi'antagesand novel fear, tures of my invention will be readily apparent.

make changes in the construction and in the conibinationand arrangement of the several .95 parts, provided that such changesfal the scope of the appended claims. I

Vhat I claim is I 1. Adevice of the class described comprising a driving. member ant. i. driven member", a head on the driving member having asem'i circular annular groove in one face, lugs on said head located in said groove, a hea on the driven member, logs on the periphery thereof and lying in said groove, coiled springs in said groove with their ends engaging the lugs and a cover plate secured to the first mentioned head and having a-semicircular groove therein inclosing the lugs 2. A device of the class described oompris ing a driven-member, a head therein having an annular semicircular 'groove therein, lugs on said member located within the groove,

5 a head on the other-member, lugs in the periphery of said head and )l'Ojectiilg into the groove, coiled springs within said groove with their endsengagin'g said lugs, a cover I :Iete carried by the first mentioned head and aving an annular groove therein for inclos- 10 ing the in s and springs and ball-bearings on each si e of the head of the driven member and engaging the head on the other member and the cover plate.

In testimony whereof I aflix my signature. 15

WILLIAM ARTHUR GLENN. 

